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About product and suppliers:
        Alibaba.com offers 352 spring box construction products. About 10% of these are anchors, 1% are metal building materials, and 1% are formwork. 

A wide variety of spring box construction options are available to you, such as truck crane, waterproof. You can also choose from free samples. 

There are 352 spring box construction suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and India, which supply 98%, 1%, and 1% of spring box construction respectively. 

Spring box construction products are most popular in North America, Domestic Market, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 58 with ISO9001, 48 with Other, and 13 with ISO14001 certification.